package com.magic.util;

import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

@Service
public class HttpService {
	 // 创建Httpclient对象  
    @Autowired(required = false)  
    private CloseableHttpClient httpClient;  
  
    // 请求信息的配置  
    @Autowired(required = false)  
    private RequestConfig requestConfig;  
  
    /** 
     * 执行Get请求 
     *  
     * @param url 
     * @return 请求到的内容 
     * @throws URISyntaxException 
     * @throws IOException 
     * @throws ClientProtocolException 
     */  
    public String doGet(String url) throws URISyntaxException,  
            ClientProtocolException, IOException {  
        return doGet(url, null);  
    }  
  
    /** 
     * 执行Get请求 
     *  
     * @param url 
     * @param params 
     *            请求中的参数 
     * @return 请求到的内容 
     * @throws URISyntaxException 
     * @throws IOException 
     * @throws ClientProtocolException 
     */  
    public String doGet(String url, Map<String, Object> params)  
            throws URISyntaxException, ClientProtocolException, IOException {  
        // 定义请求的参数  
        URI uri = null;  
        if (params != null) {  
            URIBuilder builder = new URIBuilder(url);  
            for (Map.Entry<String, Object> entry : params.entrySet()) {  
                builder.addParameter(entry.getKey(),  
                        String.valueOf(entry.getValue()));  
            }  
            uri = builder.build();  
        }  
  
        // 创建http GET请求  
        HttpGet httpGet = null;  
        if (uri != null) {  
            httpGet = new HttpGet(uri);  
        } else {  
            httpGet = new HttpGet(url);  
        }  
        // 设置请求参数  
        httpGet.setConfig(this.requestConfig);  
  
        // 请求的结果  
        CloseableHttpResponse response = null;  
        try {  
            // 执行请求  
            response = httpClient.execute(httpGet);  
            // 判断返回状态是否为200  
            if (response.getStatusLine().getStatusCode() == 200) {  
                // 获取服务端返回的数据,并返回  
                return EntityUtils.toString(response.getEntity(), "UTF-8");  
            }  
        } finally {  
            if (response != null) {  
                response.close();  
            }  
        }  
        return null;  
    }  
  
    /** 
     *  
     * @param url 
     * @param params 
     *            请求中的参数 
     * @return 请求到的内容 
     * @throws URISyntaxException 
     * @throws ClientProtocolException 
     * @throws IOException 
     */  
    public String doPost(String url, Map<String, Object> params)  
            throws URISyntaxException, ClientProtocolException, IOException {  
        // 设置post参数  
        List<NameValuePair> parameters = null;  
        // 构造一个form表单式的实体  
        UrlEncodedFormEntity formEntity = null;  
  
        // 定义请求的参数  
        if (params != null) {  
            // 设置post参数  
            parameters = new ArrayList<NameValuePair>();  
            for (Map.Entry<String, Object> entry : params.entrySet()) {  
                // 添加参数  
                parameters.add(new BasicNameValuePair(entry.getKey(), String  
                        .valueOf(entry.getValue())));  
            }  
            // 构造一个form表单式的实体  
            formEntity = new UrlEncodedFormEntity(parameters);  
            formEntity.setContentType("application/json");
        }  
  
        // 创建http post请求  
        HttpPost httpPost = null;  
        if (formEntity != null) {  
            httpPost = new HttpPost(url);  
            // 将请求实体设置到httpPost对象中  
            httpPost.setEntity(formEntity);  
            // 伪装浏览器请求  
            httpPost.setHeader(  
                    "User-Agent",  
                    "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36");  
        } else {  
            httpPost = new HttpPost(url);  
            // 伪装浏览器请求  
            httpPost.setHeader(  
                    "User-Agent",  
                    "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36");  
        }  
        // 设置请求参数  
        httpPost.setConfig(this.requestConfig);  
  
        // 请求的结果  
        CloseableHttpResponse response = null;  
        try {  
            // 执行请求  
            response = httpClient.execute(httpPost);  
            // 判断返回状态是否为200  
            if (response.getStatusLine().getStatusCode() == 200) {  
                // 获取服务端返回的数据,并返回  
                return EntityUtils.toString(response.getEntity(), "UTF-8");  
            }  
        } finally {  
            if (response != null) {  
                response.close();  
            }  
        }  
        return null;  
    }  
  
    /** 
     *  
     * @param url 
     * @param params 
     *            请求中的参数 
     * @return 请求到的内容 
     * @throws URISyntaxException 
     * @throws ClientProtocolException 
     * @throws IOException 
     */  
    public String doPost(String url) throws URISyntaxException,  
            ClientProtocolException, IOException {  
        return doPost(url, null);  
    } 
	public static String doPostJson(String url, String json) {
		// 创建Httpclient对象
		CloseableHttpClient httpClient = HttpClients.createDefault();
		CloseableHttpResponse response = null;
		String resultString = "";
		try {
			// 创建Http Post请求
			HttpPost httpPost = new HttpPost(url);
			// 创建请求内容
			StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
			httpPost.setEntity(entity);
			// 执行http请求
			response = httpClient.execute(httpPost);
			resultString = EntityUtils.toString(response.getEntity(), "utf-8");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				response.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}

		return resultString;
	}
}
